CLAIM The ornamental design for a flask for perfumery products, as shown and described.

Description:

FIG. 1 is a perspective front, top and left side view showing the new design.

FIG. 2 is front view thereof, the rear view being a mirror image.

FIG. 3 is a right side view thereof, the left side view being a mirror image.

FIG. 4 is a top plan view thereof, shown at a slightly enlarged scale; and,

FIG. 5 is a bottom view thereof.

The broken lines in FIG. 1 are provided for the purpose of illustrating a medallion with a tassel hanging therefrom and which medallion is held on the flask by a string, which features form no part of the claimed design.